Revised Total Coliform Rule (RTCR) violations in South Dakota
116 active public water systems in South Dakota had a Revised Total Coliform Rule (RTCR) violation in the past three years, 25 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Grenville Grenville · Day County |
48 | 1 | 0 | |
|
Morristown Morristown · Corson County |
47 | 2 | 0 | |
|
Sawtooth Campground and Cabins Hill City · Pennington County |
45 | 1 | 0 | |
|
Saint Onge Livestock Cafe St Onge, St. Onge · Lawrence County |
42 | 2 | 0 | |
|
American Pines Cabins Keystone · Pennington County |
40 | 3 | 0 | |
|
North Hermosa Wud Hermosa · Custer County |
40 | 3 | 2 | |
|
Vivos Xpoint Del Mar, Edgemont · Fall River County |
40 | 4 | 1 | |
|
Highland Hills Rapid City · Pennington County |
38 | 1 | 0 | |
|
Old Whites Drive in Woonsocket · Sanborn County |
37 | 1 | 0 | |
|
Robin's Roost Cabins Hill City · Pennington County |
34 | 2 | 1 | |
|
Southbrook Estates Brookings · Brookings County |
28 | 1 | 0 | |
|
Hidden Valley Water Association INC Rapid City · Pennington County |
27 | 1 | 0 | |
|
Harney Camp Cabins Custer · Pennington County |
25 | 2 | 1 | |
|
Timber Haven Cabins Keystone · Pennington County |
25 | 1 | 0 | |
|
Provo Area Water System Edgemont · Fall River County |
25 | 4 | 1 | |
|
Bicentennial Trailer Court Spearfish · Lawrence County |
23 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The South Dakota records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.